<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    <title>test</title>
</head>
<body>
<input type="text" name="textfield" value="这里是提示内容" οnclick="if(value==defaultValue){value='';this.style.color='#000'}" onBlur="if(!value){value=defaultValue;this.style.color='#999'}" style="color:#999"/>
</body>
</html>
